| abstract |
Disclosed is a bonding sheet which comprises an adhesive layer that is obtained by shaping an adhesive composition, which contains (A) a high molecular weight component and (B) a thermosetting component, into a sheet-like form. The bonding sheet is characterized in that the ratio of the peak height (PCN) around 2,240 cm-1 assigned to the nitrile group relative to the peak height (PCO) around 1,730 cm-1 assigned to the carbonyl group, namely PCN/PCO is not more than 0.03 in the IR spectrum of (A) the high molecular weight component. |